How to settle nerves before appointment

I had a laparoscopy and a cyst removal.  My ca125 was 135 and 3 weeks later ca125 was 167. 

I got a call from a consultant to have a meeting on Wednesday to discuss results an plan for treatment moving forward. Also said I need to take someone along.

I have had a gut feeling it is cancer all along but now I am so scared to hear the words from the consultant.  

How did everyone manage emotions before hearing it being said ?